Solid Red light, no signal

[cerbrus2]

Hi peeps.

I got my Kid a Pi4. when it turned up in the post, we put it in its case, hooked up the cooling fan that came with the case. Put the Raspbian OS on an SD card via the the Raspberry Imager. Inserted the SD car. connected it up to the TV via a Mini HDMI - HDMI converter.

We are only getting a Red LED, and no signal. I downloaded the recovery bootloader, and put that on a SD card, Inserted it into the pi, and plugged in the power. We are supposed to get a flashing green light, but still just a solid red light.

I have tried multiple powersupplies, Direct 2.4amp wall socket, an Amazon Fire power brick, My Old razer phone powerbrick. And then we tried the Nintendo Switch Light powerspply, that should be more than enough power for it. but none make any difference.

Any idea?

Is the Pi we got sent a dud?

[FTrevorGowen]

Hi peeps.

I got my Kid a Pi4. when it turned up in the post, we put it in its case, hooked up the cooling fan that came with the case. Put the Raspbian OS on an SD card via the the Raspberry Imager. Inserted the SD car. connected it up to the TV via a Mini HDMI - HDMI converter.

We are only getting a Red LED, and no signal. I downloaded the recovery bootloader, and put that on a SD card, Inserted it into the pi, and plugged in the power. We are supposed to get a flashing green light, but still just a solid red light.

I have tried multiple powersupplies, Direct 2.4amp wall socket, an Amazon Fire power brick, My Old razer phone powerbrick. And then we tried the Nintendo Switch Light powerspply, that should be more than enough power for it. but none make any difference.

Any idea?

Is the Pi we got sent a dud?

1) You don't mention any form of "official" power supply. Did you not purchase one with the P4B? (With others, whilst some may work, depending upon the quality/type of connecting lead YMMV.**)
2) Have you tried without having the fan connected? (None of my P4B's have one in use including the one I'm posting from.)
3) What happens if you power up without any uSDHC card present (as well as no fan)? IE. do you get the repeated four green ACTivity led flash pattern? NB.If the red PoWeR led flashes/dims at any time that's a definite indication of "bad" power.
** The only, "generic" USB C power supply + USB C-to-C lead combo. I know of personally that works is this one (acquired before official PSU's became generally available): https://www.cpmspectrepi.uk/raspberry_p ... .2FCharger .
Trev.

[FruitChopper]

Hi peeps.

I got my Kid a Pi4. when it turned up in the post, we put it in its case, hooked up the cooling fan that came with the case. Put the Raspbian OS on an SD card via the the Raspberry Imager. Inserted the SD car. connected it up to the TV via a Mini HDMI - HDMI converter.

We are only getting a Red LED, and no signal. I downloaded the recovery bootloader, and put that on a SD card, Inserted it into the pi, and plugged in the power. We are supposed to get a flashing green light, but still just a solid red light.

I have tried multiple powersupplies, Direct 2.4amp wall socket, an Amazon Fire power brick, My Old razer phone powerbrick. And then we tried the Nintendo Switch Light powerspply, that should be more than enough power for it. but none make any difference.

Any idea?

Is the Pi we got sent a dud?

Are you sure the SD Card is formatted correctly? You can delete all the paritions using Disk Management in Windows (i always use this way, there are many more ways to do this).
You can try the program 'Win32 Disk Imager' to write the .img to the SD card.
Or maybe the Pi came DOA (death on arrival). I dont think so, but its always possible.

[B.Goode]

Hi peeps.

I got my Kid a Pi4. when it turned up in the post, we put it in its case, hooked up the cooling fan that came with the case. Put the Raspbian OS on an SD card via the the Raspberry Imager. Inserted the SD car. connected it up to the TV via a Mini HDMI - HDMI converter.

We are only getting a Red LED, and no signal. I downloaded the recovery bootloader, and put that on a SD card, Inserted it into the pi, and plugged in the power. We are supposed to get a flashing green light, but still just a solid red light.

I have tried multiple powersupplies, Direct 2.4amp wall socket, an Amazon Fire power brick, My Old razer phone powerbrick. And then we tried the Nintendo Switch Light powerspply, that should be more than enough power for it. but none make any difference.

Any idea?

Is the Pi we got sent a dud?

There is a summary of all the knowledge accumulated from these forums during the past 8 years about difficulties getting an RPi to boot, see - STICKY: Is your Pi not booting? (The Boot Problems Sticky) - https://www.raspberrypi.org/forums/view ... 28&t=58151


In your particular situation, my first step would be to remove the non-essential third-party fan. The second would be to suspect the power supply.

[drgeoff]

If the red LED stays on - does not flash or go out - then the PSU and its cable are not the immediate cause of the problem.

As already suggested, unplug everything including the micro-SD card and plug in the power. Do you get the repeated 4 flash sequence of the green LED?